package com.freight.file.util;

import com.alibaba.fastjson.JSONObject;
import com.freight.core.common.redis.RedisTemplateHelper;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;

public class BaiDuToken {

    // API Key
    public static String clientId = "GiuAqHavkr8qp3wcc7N7d5L4";
    // Secret Key
    public static String clientSecret = "niKBVeDxkMpKMN5MuQe0gsgAXWVgcdcu";

    public static void getAuth(RedisTemplateHelper redisTemplate) {
        // 获取token地址
        String authHost = "https://aip.baidubce.com/oauth/2.0/token?";
        String getAccessTokenUrl = authHost
                // 1. grant_type为固定参数
                + "grant_type=client_credentials"
                // 2. 官网获取的 API Key
                + "&client_id=" + clientId
                // 3. 官网获取的 Secret Key
                + "&client_secret=" + clientSecret;
        try {
            URL realUrl = new URL(getAccessTokenUrl);
            // 打开和URL之间的连接
            HttpURLConnection connection = (HttpURLConnection) realUrl.openConnection();
            connection.setRequestMethod("GET");
            connection.connect();
            // 获取所有响应头字段
            Map<String, List<String>> map = connection.getHeaderFields();
            // 遍历所有的响应头字段
            for (String key : map.keySet()) {
                System.err.println(key + "--->" + map.get(key));
            }
            // 定义 BufferedReader输入流来读取URL的响应
            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String result = "";
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
            /**
             * 返回结果示例
             */
            System.err.println("result:" + result);
            JSONObject jsonObject = JSONObject.parseObject(result);
            String access_token = jsonObject.getString("access_token");
            redisTemplate.set("baiduAccessToken",access_token,25, TimeUnit.DAYS);

        } catch (Exception e) {
            System.err.printf("获取token失败！");
            e.printStackTrace(System.err);
        }
    }

}
